Researchers say they are seeing some waning of protection against Covid infections in double-jabbed people.
The real-world study includes data on positive Covid PCR test results between May and July 2021 among more than a million people who had received two doses of Pfizer or AstraZeneca vaccine.
Protection after two shots of Pfizer decreased from 88% at one month to 74% at five to six months.
For AstraZeneca, the fall was from 77% to 67% at four to five months.
Prof Tim Spector, lead investigator on the Zoe Covid Study app behind the research, said
“Waning protection is to be expected and is not a reason to not get vaccinated. Vaccines still provide high levels of protection for the majority of the population, especially against the Delta variant, so we still need as many people as possible to get fully vaccinated.”
Many people may not need them. Many people may have had a natural booster because they’ve already had a natural Covid infection, so will effectively have had three vaccines.
So I think the whole thing needs to be much more carefully managed than just giving it to everybody which would be a huge waste and ethically dubious given the resources we have. I think we need a more targeted approach than last time.”
The UK is set to begin offering a third Covid ‘booster jab’ next month, but is waiting for recommendations from the JCVI which is looking at evidence on whether or not to support a decision.
Unity News Network (UNN) Staff Writer | To find out more details about our staff, please head to the About Us section on our website.
